The NRL Integrity Unit is investigating a sex tape involving the New Zealand Warriors’ Konrad Hurrell.

A video reportedly depicting Hurrell driving while engaged in a sex act surfaced on the internet on Sunday night. It appears the video was filmed on a phone and circulated on Instagram before being deleted.

New Zealand actress Teuila Blakely confirmed she was the woman in the video. "Yeah it was me, but it was a private video between me and Koni and it wasn't meant to have been leaked," the 39-year-old Shortland St actress told the New Zealand Herald.

Blakely said the film was taken two months ago and Hurrell sent it to a friend on Snapchat, which allows users to send photos and videos which are then automatically deleted after a short period of time. She said she did not know who uploaded the video onto the internet.

The Warriors said they were investigating the matter.

NRL chief operating officer Jim Doyle said the league's integrity unit was looking into the incident and was waiting for the Warriors to report back.

"All I am going to say is that I am aware of it," Doyle said at the launch of the NRL Women In League round on Monday. "Driving here to this function we were made aware that there is something there but we are following up on it now. We don't have any other knowledge."

“You get mothers who are deciding if their kids should play the game, you get a club who is potentially on the verge with some high-profile corporate who wants to get involved in the game, and something happens that puts them off.

“It puts a mum off from their little kid playing, it puts a potential sponsor from spending millions of dollars in the game, and that has a negative impact on the whole game.”

The Warriors coach, Andrew McFadden, said the incident was unlikely to disupt the team. "It's probably embarrassing for Konrad, but we all make mistakes and he's made one and he will have to live with the consequences of that," he said. "In terms of having any impact on the rest of the team, I don't think that should happen."

Team-mate Ben Henry, who described Hurrell as a good friend, said the incident served as a reminder to players about their actions.

"There are certain traps and I think Koni has learnt from that," he said.

As for how Hurrell had coped with the fallout, Henry said: "Koni is Koni – he cracks jokes and he laughs. He deals with things well and I'm sure he's focused on this week as well."